公开(公告)号：US3882435A

公开(公告)日：1975-05-06

申请号：US48405874

申请日：1974-06-28

Applicant: SQUARE D CO

Inventor： GRASS WILLIAM E ,  KARCH WALTER C

IPC: H01H51/10 ,  H01H50/32

CPC classification number: H01H51/10

Abstract: A latch attachment for an electromagnetically operated switching device such as a relay or a contactor. The attachment includes an adjustment means which will automatically cause a latching surface on a plunger to be engaged by a latching surface on a latch lever when the contacts of the relay are moved to their operated position by a manual force applied on the plunger.

Abstract translation: 用于电磁操作的开关装置（例如继电器或接触器）的闩锁附件。 附件包括调节装置，当通过施加在柱塞上的手动力将继电器的触点移动到其操作位置时，自动使柱塞上的闩锁表面与闩锁杆上的闩锁表面接合。

公开(公告)号：US3569878A

公开(公告)日：1971-03-09

申请号：US3569878D

申请日：1969-05-05

Applicant: SQUARE D CO

Inventor： GRASS WILLIAM E ,  BOLEY ROBERT D

IPC: H01H51/10 ,  H01H9/24

CPC classification number: H01H51/10

Abstract: A permanent magnet latch attachment which magnetically latches an electromagnetically driven contact carrier of an electromagnetically operated switch device in an operating position against the force of a biasing spring which, when the latch attachment is rendered inoperative by energization of a release coil, returns the carrier to starting position. A connecting pin is rotatable about an axis eccentric to its own axis adjusts the flux gap of the latch. The latch attachment and release coil are mounted between the rear of the relay base and a mounting panel for the relay.